How do i output character string on my code?

So i'm working on project that outputs chess moves by using image processing to detect differences in the picture then my program out put chess move. Thanks to help Jan Simon one of the guys on MATLab central i sucessfully am able to ouput the correct chess moves. But i have one problem that might be easy to answer. When i run the program i am given two chess cell A=C6 A=E4. Which is correct but i want I want MATLab to output A = C6E4, instead of two different equations. I guess that is a string, please help.

My code

q3=imread('image3.jpg');
q4=imread('image4.jpg');
gray3 = imabsdiff(q3,q4);
RowName = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'};
ColName = {'1', '2', '3', '4', '5', '6', '7', '8'};
RowPos  = 5:120:955;
ColPos  = 160:120:1114;
A = [];
for row = 1:8
  start_row = RowPos(row);
  for col = 1:8
    start_col = ColPos(col);
    crop = gray3(start_row+33:start_row+98, ...
                 start_col+33:start_col+98, :);
     b = find(crop >180);   % *Not* the whole gray5 array!
%      figure,imshow(crop)
   % if ~isempty(b)          % Better:
    if any(crop(:) > 180)
      A = [RowName{row}, ColName{col}]
    end
  end
end

Output--------------------------------------------

A =

C6

A =

E4

I want A= C6E4

thank you

Answer 1

[Walter Roberson]

In your loop,

A = [A RowName{row} ColName{col}];